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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2008 Anders Dahnielson <anders@dahnielson.com> * |
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* Copyright (C) 2009 - 2011 Anders Dahnielson and Grigor Iliev * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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|
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#ifndef LIBSFZ_SFZ_H |
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#define LIBSFZ_SFZ_H |
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|
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#include <fstream> |
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#include <iostream> |
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#include <vector> |
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#include <string> |
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#include <stdexcept> |
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|
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#include "../common/SampleFile.h" |
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#include "../common/SampleManager.h" |
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#include "../../common/ArrayList.h" |
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|
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#define TRIGGER_ATTACK ((unsigned char) (1 << 0)) // 0x01 |
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#define TRIGGER_RELEASE ((unsigned char) (1 << 1)) // 0x02 |
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#define TRIGGER_FIRST ((unsigned char) (1 << 2)) // 0x04 |
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#define TRIGGER_LEGATO ((unsigned char) (1 << 3)) // 0x08 |
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|
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namespace sfz |
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{ |
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// Forward declarations |
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class Articulation; |
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class Region; |
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class Group; |
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class Instrument; |
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class File; |
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class LookupTable; |
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|
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class Sample : public LinuxSampler::SampleFileBase<Region> { |
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public: |
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Sample(String File, bool DontClose = false, uint offset = 0): LinuxSampler::SampleFileBase<Region>(File, DontClose) { |
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Offset = offset; |
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} |
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virtual ~Sample() { } |
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}; |
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|
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// Enumerations |
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enum sw_vel_t { VEL_CURRENT, VEL_PREVIOUS }; |
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enum off_mode_t { OFF_FAST, OFF_NORMAL }; |
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enum loop_mode_t { NO_LOOP, ONE_SHOT, LOOP_CONTINUOUS, LOOP_SUSTAIN, LOOP_UNSET }; |
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enum curve_t { GAIN, POWER }; |
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enum filter_t { LPF_1P, HPF_1P, BPF_1P, BRF_1P, APF_1P, |
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LPF_2P, HPF_2P, BPF_2P, BRF_2P, PKF_2P, |
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LPF_4P, HPF_4P, |
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LPF_6P, HPF_6P }; |
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|
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typedef unsigned char trigger_t; |
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typedef unsigned char uint8_t; |
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|
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class SampleManager : public LinuxSampler::SampleManager<Sample, Region> { |
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public: |
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Sample* FindSample(std::string samplePath, int offset); |
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|
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protected: |
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virtual void OnSampleInUse(Sample* pSample) { |
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pSample->Open(); |
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} |
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|
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virtual void OnSampleInNotUse(Sample* pSample) { |
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pSample->Close(); |
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} |
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}; |
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|
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class CC { |
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public: |
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uint8_t Controller; ///< MIDI controller number. |
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short int Curve; |
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float Influence; ///< Controller Value. |
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float Smooth; ///< The speed of parameter change in milliseconds |
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|
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CC(uint8_t Controller = 0, float Influence = 0.0f, short int Curve = -1, float Smooth = 0) { |
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this->Controller = Controller; |
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this->Influence = Influence; |
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this->Curve = Curve; |
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this->Smooth = Smooth; |
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} |
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|
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CC(const CC& cc) { Copy(cc); } |
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void operator=(const CC& cc) { Copy(cc); } |
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|
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void Copy(const CC& cc) { |
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Controller = cc.Controller; |
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Influence = cc.Influence; |
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Curve = cc.Curve; |
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Smooth = cc.Smooth; |
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} |
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}; |
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|
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///////////////////////////////////////////////////////////// |
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// class Exception |
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|
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class Exception : |
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public std::runtime_error |
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{ |
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public: |
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Exception(const std::string& msg) : |
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runtime_error(msg) |
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{ |
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} |
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|
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std::string Message() |
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{ |
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return what(); |
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} |
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|
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void PrintMessage() |
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{ |
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std::cerr << what() << std::endl << std::flush; |
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} |
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}; |
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|
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///////////////////////////////////////////////////////////// |
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// class optional |
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|
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// Handy class nicked from LinuxSampler... |
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// Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck |
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// Copyright (C) 2005, 2006 Christian Schoenebeck |
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|
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class optional_base |
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{ |
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public: |
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class nothing_t { public: nothing_t() {} }; |
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static const nothing_t nothing; |
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}; |
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|
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template<class T> |
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class optional : |
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public optional_base |
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{ |
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public: |
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optional() |
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{ |
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initialized = false; |
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} |
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|
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optional(T data) |
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{ |
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this->data = data; |
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initialized = true; |
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} |
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|
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optional(nothing_t) |
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{ |
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initialized = false; |
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} |
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|
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template <class T_inner> |
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optional(T_inner data) |
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{ |
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this->data = T(data); |
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initialized = true; |
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} |
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|
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const T& get() const throw (Exception) |
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{ |
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if (!initialized) throw Exception("optional variable not initialized"); |
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return data; |
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} |
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|
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T& get() throw (Exception) |
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{ |
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if (!initialized) throw Exception("optional variable not initialized"); |
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return data; |
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} |
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|
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void unset() |
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{ |
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initialized = false; |
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} |
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|
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optional& operator =(const optional& arg) throw (Exception) |
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{ |
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if (!arg.initialized) { |
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initialized = false; |
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} else { |
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this->data = arg.data; |
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initialized = true; |
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} |
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return *this; |
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} |
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|
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optional& operator =(const T& arg) |
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{ |
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this->data = arg; |
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initialized = true; |
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return *this; |
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} |
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|
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const T& operator *() const throw (Exception) { return get(); } |
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T& operator *() throw (Exception) { return get(); } |
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|
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const T* operator ->() const throw (Exception) |
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{ |
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if (!initialized) throw Exception("optional variable not initialized"); |
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return &data; |
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} |
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|
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T* operator ->() throw (Exception) |
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{ |
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if (!initialized) throw Exception("optional variable not initialized"); |
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return &data; |
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} |
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|
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operator bool() const { return initialized; } |
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bool operator !() const { return !initialized; } |
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|
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protected: |
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T data; |
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bool initialized; |
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}; |
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|
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///////////////////////////////////////////////////////////// |
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// class Articulation |
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|
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// Articulation containing all performance parameters for synthesis |
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class Articulation |
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{ |
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public: |
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Articulation(); |
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virtual ~Articulation(); |
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}; |
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|
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class EGNode |
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{ |
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public: |
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float time; |
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float level; |
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float shape; |
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float curve; |
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LinuxSampler::ArrayList<CC> time_oncc; |
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LinuxSampler::ArrayList<CC> level_oncc; |
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|
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EGNode(); |
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EGNode(const EGNode& egNode) { Copy(egNode); } |
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void operator=(const EGNode& egNode) { Copy(egNode); } |
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void Copy(const EGNode& egNode); |
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}; |
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|
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class EG |
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{ |
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public: |
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LinuxSampler::ArrayList<EGNode> node; |
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int sustain; |
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int loop; |
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int loop_count; |
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float amplitude; |
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float cutoff; |
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EG(); |
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EG(const EG& eg) { Copy(eg); } |
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void operator=(const EG& eg) { Copy(eg); } |
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void Copy(const EG& eg); |
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}; |
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|
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class LFO |
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{ |
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public: |
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float delay; // 0 to 100 seconds |
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float freq; // 0 to 20 Hz |
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float fade; // 0 to 100 seconds |
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float phase; // 0 to 360 degrees |
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uint wave; // 0 to 4294967296 |
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float volume; // -144 to 6 dB |
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int pitch; // -9600 to 9600 cents |
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int cutoff; // -9600 to 9600 cents |
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float resonance; // 0 to 40 dB |
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float pan; // -100 to 100 % |
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|
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LinuxSampler::ArrayList<CC> freq_oncc; // 0 to 20 Hz |
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LinuxSampler::ArrayList<CC> fade_oncc; // 0 to 100 seconds |
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LinuxSampler::ArrayList<CC> phase_oncc; // 0 to 360 degrees |
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LinuxSampler::ArrayList<CC> pitch_oncc; |
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|
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LFO(); |
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LFO(const LFO& lfo) { Copy(lfo); } |
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void operator=(const LFO& lfo) { Copy(lfo); } |
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void Copy(const LFO& lfo); |
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}; |
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|
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// Fixed size array with copy-on-write semantics |
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template<class T> |
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class Array |
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{ |
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private: |
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struct Rep { |
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int refcount; |
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T a[128]; |
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|
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Rep() : refcount(1) { } |
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static void release(Rep* rep) { |
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if (!--rep->refcount) delete rep; |
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} |
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} *ptr; |
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public: |
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Array() : ptr(0) { } |
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~Array() { Rep::release(ptr); } |
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|
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Array& operator=(const Array& array) { |
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if (this != &array) { |
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ptr = array.ptr; |
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if (ptr) ptr->refcount++; |
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} |
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return *this; |
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} |
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|
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const T& operator[](int i) const { return ptr->a[i]; } |
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|
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void set(int i, const T& v) { |
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if (!ptr) { |
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ptr = new Rep; |
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} else if (ptr->refcount > 1 && ptr->a[i] != v) { |
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Rep* newptr = new Rep(*ptr); |
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newptr->refcount = 1; |
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Rep::release(ptr); |
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ptr = newptr; |
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} |
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ptr->a[i] = v; |
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} |
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}; |
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|
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///////////////////////////////////////////////////////////// |
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// class Definition |
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|
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// Base definition used by groups and regions |
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class Definition |
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{ |
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public: |
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Definition(); |
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virtual ~Definition(); |
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|
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// sample definition |
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std::string sample; |
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|
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// input controls |
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int lochan; int hichan; |
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int lokey; int hikey; |
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int lovel; int hivel; |
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Array<int> locc; Array<int> hicc; |
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int lobend; int hibend; |
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float lobpm; float hibpm; |
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int lochanaft; int hichanaft; |
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int lopolyaft; int hipolyaft; |
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int loprog; int hiprog; |
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float lorand; float hirand; |
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float lotimer; float hitimer; |
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|
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int seq_length; |
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int seq_position; |
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|
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Array<int> start_locc; Array<int> start_hicc; |
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Array<int> stop_locc; Array<int> stop_hicc; |
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|
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int sw_lokey; int sw_hikey; |
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int sw_last; |
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int sw_down; |
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int sw_up; |
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int sw_previous; |
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sw_vel_t sw_vel; |
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|
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trigger_t trigger; |
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|
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uint group; |
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uint off_by; |
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off_mode_t off_mode; |
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|
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Array<int> on_locc; Array<int> on_hicc; |
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|
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// sample player |
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optional<int> count; |
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optional<float> delay; optional<float> delay_random; Array<optional<float> > delay_oncc; |
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optional<int> delay_beats; optional<int> stop_beats; |
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optional<int> delay_samples; Array<optional<int> > delay_samples_oncc; |
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optional<int> end; |
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optional<float> loop_crossfade; |
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optional<int> offset; optional<int> offset_random; Array<optional<int> > offset_oncc; |
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loop_mode_t loop_mode; |
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optional<int> loop_start; optional<int> loop_end; |
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optional<int> sync_beats; |
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optional<int> sync_offset; |
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|
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// amplifier |
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float volume; |
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float pan; |
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float width; |
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float position; |
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float amp_keytrack; int amp_keycenter; float amp_veltrack; Array<float> amp_velcurve; float amp_random; |
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float rt_decay; |
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Array<float> gain_oncc; |
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int xfin_lokey; int xfin_hikey; |
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int xfout_lokey; int xfout_hikey; |
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curve_t xf_keycurve; |
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int xfin_lovel; int xfin_hivel; |
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int xfout_lovel; int xfout_hivel; |
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curve_t xf_velcurve; |
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Array<int> xfin_locc; Array<int> xfin_hicc; |
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Array<int> xfout_locc; Array<int> xfout_hicc; |
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curve_t xf_cccurve; |
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|
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// pitch |
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int transpose; |
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int tune; |
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int pitch_keycenter; int pitch_keytrack; int pitch_veltrack; int pitch_random; |
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int bend_up; int bend_down; int bend_step; |
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|
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// filter |
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filter_t fil_type; filter_t fil2_type; |
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optional<float> cutoff; optional<float> cutoff2; |
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Array<int> cutoff_oncc; Array<int> cutoff2_oncc; |
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int cutoff_cc; // TODO: this is just a temporary fix to avoid |
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// looping through the cutoff_oncc array |
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Array<int> cutoff_smoothcc; Array<int> cutoff2_smoothcc; |
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Array<int> cutoff_stepcc; Array<int> cutoff2_stepcc; |
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Array<int> cutoff_curvecc; Array<int> cutoff2_curvecc; |
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int cutoff_chanaft; int cutoff2_chanaft; |
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int cutoff_polyaft; int cutoff2_polyaft; |
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float resonance; float resonance2; |
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Array<int> resonance_oncc; Array<int> resonance2_oncc; |
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Array<int> resonance_smoothcc; Array<int> resonance2_smoothcc; |
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Array<int> resonance_stepcc; Array<int> resonance2_stepcc; |
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Array<int> resonance_curvecc; Array<int> resonance2_curvecc; |
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int fil_keytrack; int fil2_keytrack; |
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int fil_keycenter; int fil2_keycenter; |
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int fil_veltrack; int fil2_veltrack; |
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int fil_random; int fil2_random; |
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|
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// per voice equalizer |
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float eq1_freq; float eq2_freq; float eq3_freq; |
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Array<float> eq1_freq_oncc; Array<float> eq2_freq_oncc; Array<float> eq3_freq_oncc; |
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float eq1_vel2freq; float eq2_vel2freq; float eq3_vel2freq; |
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float eq1_bw; float eq2_bw; float eq3_bw; |
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Array<float> eq1_bw_oncc; Array<float> eq2_bw_oncc; Array<float> eq3_bw_oncc; |
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float eq1_gain; float eq2_gain; float eq3_gain; |
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Array<float> eq1_gain_oncc; Array<float> eq2_gain_oncc; Array<float> eq3_gain_oncc; |
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float eq1_vel2gain; float eq2_vel2gain; float eq3_vel2gain; |
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|
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//Deprecated (from version 1) |
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float ampeg_delay, ampeg_start, ampeg_attack, ampeg_hold, ampeg_decay, ampeg_sustain, ampeg_release; |
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float ampeg_vel2delay, ampeg_vel2attack, ampeg_vel2hold, ampeg_vel2decay, ampeg_vel2sustain, ampeg_vel2release; |
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LinuxSampler::ArrayList<CC> ampeg_delaycc, ampeg_startcc, ampeg_attackcc, ampeg_holdcc; |
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LinuxSampler::ArrayList<CC> ampeg_decaycc, ampeg_sustaincc, ampeg_releasecc; |
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float fileg_delay, fileg_start, fileg_attack, fileg_hold, fileg_decay, fileg_sustain, fileg_release; |
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float fileg_vel2delay, fileg_vel2attack, fileg_vel2hold, fileg_vel2decay, fileg_vel2sustain, fileg_vel2release; |
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float pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold, pitcheg_decay, pitcheg_sustain, pitcheg_release; |
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float pitcheg_vel2delay, pitcheg_vel2attack, pitcheg_vel2hold, pitcheg_vel2decay, pitcheg_vel2sustain, pitcheg_vel2release; |
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int fileg_depth, pitcheg_depth; |
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float amplfo_delay, amplfo_fade, amplfo_freq, amplfo_depth; |
469 |
float fillfo_delay, fillfo_fade, fillfo_freq, fillfo_depth; |
470 |
float pitchlfo_delay, pitchlfo_fade, pitchlfo_freq; |
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int pitchlfo_depth; |
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Array<int> pitchlfo_depthcc; |
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|
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LinuxSampler::ArrayList<CC> pitchlfo_freqcc; // 0 to 20 Hz |
475 |
LinuxSampler::ArrayList<CC> fillfo_freqcc; // 0 to 20 Hz |
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LinuxSampler::ArrayList<CC> amplfo_freqcc; // 0 to 20 Hz |
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|
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// envelope generators |
479 |
LinuxSampler::ArrayList<EG> eg; |
480 |
|
481 |
// low frequency oscillators |
482 |
LinuxSampler::ArrayList<LFO> lfos; |
483 |
|
484 |
LinuxSampler::ArrayList<CC> volume_oncc; |
485 |
LinuxSampler::ArrayList<CC> volume_curvecc; // used only as temporary buffer during the parsing - values are then moved to volume_oncc |
486 |
LinuxSampler::ArrayList<CC> volume_smoothcc; // used only as temporary buffer during the parsing - values are then moved to volume_oncc |
487 |
}; |
488 |
|
489 |
class Query { |
490 |
public: |
491 |
uint8_t chan; // MIDI channel |
492 |
uint8_t key; // MIDI note |
493 |
uint8_t vel; // MIDI velocity |
494 |
int bend; // MIDI pitch bend |
495 |
uint8_t bpm; // host BPM |
496 |
uint8_t chanaft; // MIDI channel pressure |
497 |
uint8_t polyaft; // MIDI polyphonic aftertouch |
498 |
uint8_t prog; // MIDI program change |
499 |
float rand; // generated random number |
500 |
trigger_t trig; // how it was triggered |
501 |
uint8_t* cc; // all 128 CC values |
502 |
float timer; // time since previous region in the group was triggered |
503 |
bool* sw; // state of region key switches, 128 possible values |
504 |
uint8_t last_sw_key; // last key pressed in the key switch range |
505 |
uint8_t prev_sw_key; // previous note value |
506 |
|
507 |
void search(const Instrument* pInstrument); |
508 |
void search(const Instrument* pInstrument, int triggercc); |
509 |
Region* next(); |
510 |
private: |
511 |
LinuxSampler::ArrayList<Region*>* pRegionList; |
512 |
int regionIndex; |
513 |
}; |
514 |
|
515 |
///////////////////////////////////////////////////////////// |
516 |
// class Region |
517 |
|
518 |
/// Defines Region information of an Instrument |
519 |
class Region : |
520 |
public Definition |
521 |
{ |
522 |
public: |
523 |
Region(); |
524 |
virtual ~Region(); |
525 |
|
526 |
Sample* pSample; |
527 |
Sample* GetSample(bool create = true); |
528 |
void DestroySampleIfNotUsed(); |
529 |
|
530 |
Region* GetParent() { return this; }; // needed by EngineBase |
531 |
Instrument* GetInstrument() { return pInstrument; } |
532 |
void SetInstrument(Instrument* pInstrument) { this->pInstrument = pInstrument; } |
533 |
|
534 |
bool HasLoop(); |
535 |
uint GetLoopStart(); |
536 |
uint GetLoopEnd(); |
537 |
uint GetLoopCount(); |
538 |
|
539 |
/// Return true if region is triggered by key. Region is |
540 |
/// assumed to come from a search in the lookup table. |
541 |
bool OnKey(const Query& q); |
542 |
|
543 |
/// Return an articulation for the current state |
544 |
Articulation* GetArticulation(int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft, uint8_t* cc); |
545 |
|
546 |
// unique region id |
547 |
int id; |
548 |
|
549 |
private: |
550 |
Instrument* pInstrument; |
551 |
int seq_counter; |
552 |
}; |
553 |
|
554 |
class Curve { |
555 |
public: |
556 |
float v[128]; |
557 |
Curve() { for (int i = 0; i < 128; i++) v[i] = 0; } |
558 |
Curve(const Curve& curve) { Copy(curve); } |
559 |
void operator=(const Curve& curve) { Copy(curve); } |
560 |
void Copy(const Curve& curve) { for (int i = 0; i < 128; i++) v[i] = curve.v[i]; } |
561 |
}; |
562 |
|
563 |
///////////////////////////////////////////////////////////// |
564 |
// class Instrument |
565 |
|
566 |
/// Provides all neccessary information for the synthesis of an Instrument |
567 |
class Instrument : public SampleManager |
568 |
{ |
569 |
public: |
570 |
Instrument(std::string name = "Unknown", SampleManager* pSampleManager = NULL); |
571 |
virtual ~Instrument(); |
572 |
|
573 |
std::string GetName() { return name; } |
574 |
SampleManager* GetSampleManager() { return pSampleManager; } |
575 |
|
576 |
bool DestroyRegion(Region* pRegion); |
577 |
bool HasKeyBinding(uint8_t key); |
578 |
bool HasKeySwitchBinding(uint8_t key); |
579 |
|
580 |
/// List of Regions belonging to this Instrument |
581 |
std::vector<Region*> regions; |
582 |
::LinuxSampler::ArrayList<Curve> curves; |
583 |
|
584 |
friend class File; |
585 |
friend class Query; |
586 |
|
587 |
private: |
588 |
std::string name; |
589 |
std::vector<bool> KeyBindings; |
590 |
std::vector<bool> KeySwitchBindings; |
591 |
SampleManager* pSampleManager; |
592 |
LookupTable* pLookupTable; |
593 |
LookupTable* pLookupTableCC[128]; |
594 |
}; |
595 |
|
596 |
///////////////////////////////////////////////////////////// |
597 |
// class Group |
598 |
|
599 |
/// A Group act just as a template containing Region default values |
600 |
class Group : |
601 |
public Definition |
602 |
{ |
603 |
public: |
604 |
Group(); |
605 |
virtual ~Group(); |
606 |
|
607 |
/// Reset Group to default values |
608 |
void Reset(); |
609 |
|
610 |
/// Create a new Region |
611 |
Region* RegionFactory(); |
612 |
|
613 |
// id counter |
614 |
int id; |
615 |
|
616 |
}; |
617 |
|
618 |
///////////////////////////////////////////////////////////// |
619 |
// class File |
620 |
|
621 |
/// Parses SFZ files and provides abstract access to the data |
622 |
class File |
623 |
{ |
624 |
public: |
625 |
/// Load an existing SFZ file |
626 |
File(std::string file, SampleManager* pSampleManager = NULL); |
627 |
virtual ~File(); |
628 |
|
629 |
/// Returns a pointer to the instrument object |
630 |
Instrument* GetInstrument(); |
631 |
|
632 |
private: |
633 |
void push_header(std::string token); |
634 |
void push_opcode(std::string token); |
635 |
int parseKey(const std::string& value); |
636 |
EG& eg(int x); |
637 |
EGNode& egnode(int x, int y); |
638 |
LFO& lfo(int x); |
639 |
void copyCurves(LinuxSampler::ArrayList<CC>& curves, LinuxSampler::ArrayList<CC>& dest); |
640 |
void copySmoothValues(LinuxSampler::ArrayList<CC>& smooths, LinuxSampler::ArrayList<CC>& dest); |
641 |
|
642 |
std::string currentDir; |
643 |
/// Pointer to the Instrument belonging to this file |
644 |
Instrument* _instrument; |
645 |
|
646 |
// state variables |
647 |
enum section_t { UNKNOWN, GROUP, REGION, CONTROL, CURVE }; |
648 |
section_t _current_section; |
649 |
Region* _current_region; |
650 |
Group* _current_group; |
651 |
Curve* _current_curve; |
652 |
Definition* pCurDef; |
653 |
|
654 |
// control header directives |
655 |
std::string default_path; |
656 |
int octave_offset; |
657 |
int note_offset; |
658 |
}; |
659 |
|
660 |
} // !namespace sfz |
661 |
|
662 |
#endif // !LIBSFZ_SFZ_H |